JP2004502893A - Gas extraction method and apparatus for turbine condenser - Google Patents
Gas extraction method and apparatus for turbine condenser Download PDFInfo
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- JP2004502893A JP2004502893A JP2001558581A JP2001558581A JP2004502893A JP 2004502893 A JP2004502893 A JP 2004502893A JP 2001558581 A JP2001558581 A JP 2001558581A JP 2001558581 A JP2001558581 A JP 2001558581A JP 2004502893 A JP2004502893 A JP 2004502893A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/02—Arrangements or modifications of condensate or air pumps
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Abstract
タービン復水器をガス抽出するために、起動ジェットポンプ（１９）を通って導かれる駆動蒸気（ＤＴ）によって、タービン復水器（１）内に含まれる空気（Ｌ）が吸い出される。本発明によれば、駆動蒸気（ＤＴ）が空気（Ｌ）と共に、タービン復水器（１）に後置接続された補助復水器（５）に導かれる。To extract gas from the turbine condenser, the air (L) contained in the turbine condenser (1) is sucked out by the driving steam (D T ) guided through the starting jet pump (19). According to the invention, the drive steam (D T ) is led together with the air (L) to an auxiliary condenser (5) downstream of the turbine condenser (1).
Description
【０００１】
本発明は、特に起動時におけるタービン復水器のガス抽出方法に関する。また本発明はその方法を実施するための装置に関する。
【０００２】
蒸気タービン設備の運転中、通常、ボイラで生成され蒸気タービンにおいて仕事をしながら膨張した蒸気は、蒸気タービンに後置接続された復水器において凝縮される。タービン復水器において生じた復水は、蒸気タービンの水−蒸気回路に再び導入される。タービン設備の運転中タービン復水器又は主復水器内に存在する空気を吸い出すために、しばしばいわゆる運転ジェットポンプが使用され、この運転ジェットポンプは、駆動蒸気導管に接続され、主復水器に後置接続された補助復水器と結合されている。ジェットポンプ原理で作動する運転ジェットポンプの吸込み側に、主復水器と結合された空気導管が接続されている。
【０００３】
蒸気タービンの起動又は再起動の際、まずタービン復水器又は主復水器からガスを抽出し真空度を高める必要がある。その場合、ジェットポンプ原理に従い駆動蒸気が供給されるいわゆる起動蒸気エゼクタによって、タービン復水器および従って蒸気タービン設備が例えば３０分以内に１．０バールから約０．３バールに排気される。起動ジェットポンプの吐出し側から出る蒸気・空気混合気は、配管を介して大気に搬出される。その配管は、発生する蒸気・空気混合気の設定された混合温度に対して設計されねばならず、守るべき環境条件に基づいて消音器を設けねばならない。
【０００４】
その場合の主な欠点は、蒸気タービンの水−蒸気回路から通常取り出される駆動蒸気が失われ、それに応じた量の給水がタービン復水器の給水回路に補給されねばならないことにある。この給水損失は起動過程の回数の増加と共に上昇し、必要な給水準備のために余分な費用がかかることになる。
【０００５】
本発明の課題は、上述の欠点が特に簡単なやり方で回避される、特に起動運転時におけるタービン復水器のガス抽出方法を提供することにある。さらに本発明の課題は、この方法を実施するために特に適した装置を提供することにある。
【０００６】
上述の方法に関する課題は、本発明によれば特許請求の範囲の請求項１に記載の特徴によって解決される。そのために、起動ジェットポンプを通って導かれる駆動蒸気が、タービン復水器から吸い出された空気と共に補助復水器に導入される。
【０００７】
これによって、補助復水器内で凝縮した駆動蒸気は、復水としてタービン復水器の給水回路に、従って蒸気タービン設備に再び導入される。駆動蒸気内に含まれる空気は、補助復水器から排出されるのが目的に適っている。
【０００８】
数時間にわたる起動運転をも可能にするために、定格運転に応じた復水量あるいは給水量の少なくとも半分が、補助復水器における冷却に対して利用されるようにするのが目的に適っている。これは、補助復水器を通して主復水器から導かれる復水流を通常調整する制御弁を相応して設計することを必要とするだけである。
【０００９】
さらに補助復水器を通して導かれる復水流の加熱を必要な限界内に抑えるために、復水ポンプによって補助復水器を通して導かれる復水流は、約７５％の大部分が、主復水器の復水器管を介して導かれる。これによって、主復水器の冷却水冷却は、補助復水器を通して導かれる復水部分流の再冷却に利用される。従って、復水流即ち単位時間当たり搬送される復水量の約２５％の比較的少ない部分が、起動運転にも必要な蒸気タービンからの排水の冷却に利用される。
【００１０】
装置についての上述の課題は、本発明によれば、請求項５に記載の特徴によって解決される。その有利な構成はその従属請求項に記載されている。
【００１１】
本発明によって得られる利点は特に、蒸気タービンの水−蒸気回路から取り出されてタービン復水器のガス抽出に利用される駆動蒸気が、蒸気タービン設備の補助復水器に導入されることによって、再び回路に供給されることにある。これによって、回路への給水の望ましくない補給が回避される。更にまた、タービンおよび復水器を排気するための蒸気噴射・空気ポンプ系における従来通常の消音器が省かれる。
【００１２】
以下図を参照して本発明の実施例を詳細に説明する。図１には、後置接続された補助復水器と蒸気噴射・空気ポンプ系とを備えたタービン復水器のガス抽出装置の配管系統が概略的に示されている。
【００１３】
蒸気タービン設備（図示せず）の主復水器又はタービン復水器１は、その出口側が復水集合器２を介して復水導管３に接続され、復水導管３は復水ポンプ４を介して補助復水器５の入口側に接続されている。補助復水器５の出口側は復水導管６を介して主復水器１に接続されている。この復水導管６内には、起動運転に必要な低温復水量を調整するための循環調整弁７が存在している。また復水導管６に、例えばボイラ加熱面に通じる復水循環導管８が接続され、この復水循環導管８は起動時に閉じられる調整弁９を備えている。
【００１４】
補助復水器５に集まる復水Ｋは復水導管１０を介して主復水器１の復水集合器２に導かれる。そのために復水導管１０は、それぞれ止め弁１１ａ、１１ｂが存在している２つの分岐管１０ａ、１０ｂを介して、補助復水器５の第１圧力段５ａないし第２圧力段５ｂに接続されている。復水を帰還させるために用いられる復水導管１０の分岐管１０ｃが主復水器１に通じており、主復水器１に蒸気タービン（図示せず）からの蒸気排出管１２が開口している。
【００１５】
主復水器１に３つの部分導管１４ａ、１４ｂ、１４ｃに共通の蒸気・空気混合配管１４が接続されている。この蒸気・空気混合配管１４は主復水器１および従ってタービン設備（図示せず）からガスを抽出又は排気するためのジェットポンプ系１５に通じている。そのために配管１４はそれぞれ止め弁１６ａ、１６ｂを介して補助復水器５の第１圧力段５ａの運転ジェットポンプ１７ａ、１７ｂに通じている。主復水器１に接続された配管１４は、止め弁１８が存在している部分導管１４ｃを介して、起動ジェットポンプ１９に通じている。この起動ジェットポンプ１９は補助復水器５の第２圧力段５ｂに属している。
【００１６】
補助復水器５の第１圧力段５ａおよび第２圧力段５ｂにそれぞれ、別の運転ジェットポンプ２０ａ、２０ｂが属している。これらの運転ジェットポンプ１７ａ、２０ａ、１７ｂ、２０ｂは冗長的に、即ち重複して構成されている。
【００１７】
運転ジェットポンプ１７ａ、１７ｂ及び２０ａ、２０ｂは、それぞれ止め弁２３が存在している分岐導管２１ａ、２１ｂ及び２２ａ、２２ｂを介して共通の駆動蒸気導管２４に接続されている。同様に起動ジェットポンプ１９は、さらに止め弁２６が存在している分岐導管２５を介して駆動蒸気導管２４に接続されている。駆動蒸気導管２４には今１つの止め弁２７が存在し、これを通して導入される駆動蒸気ＤＴは、蒸気タービンの水−蒸気回路から図示していない方式で取り出される。
【００１８】
蒸気タービン設備の起動運転時には、まずタービン復水器１がガス抽出される。そのために、止め弁２７および止め弁２６が開かれて、分岐導管２５および起動ジェットポンプ１９を通して駆動蒸気ＤＴが導かれる。起動運転中に駆動蒸気導管２４および分岐導管２５を通して導かれる単位時間当たりの駆動蒸気ＤＴの量は、起動ジェットポンプ１９によって決定される。ジェットポンプ原理で作動する起動ジェットポンプ１９を通して導かれる駆動蒸気ＤＴは、主復水器１内に生ずる負圧のために空気導管１４を介して主復水器１から吸い出された空気Ｌと共に、蒸気・空気混合気ＤＬとして補助復水器５に導入される。そのために、起動ジェットポンプ１９は吐出し側が連結導管２８を介して、好ましくは、補助復水器５の第２圧力段５ｂに接続されている。駆動蒸気ＤＴは補助復水器５において凝縮されるのに対し、駆動蒸気ＤＴで共に運ばれる空気Ｌは排気導管２９を介して補助復水器５から大気に排出される。補助復水器５内で凝縮した駆動蒸気ＤＴは、復水として復水導管１０を介して主復水器１の復水集合器２に導入され、従ってその回路に導入される。
【００１９】
補助復水器５において駆動蒸気ＤＴを凝縮するために、補助復水器５に冷却水として、復水ポンプ４によって搬送される主復水器１からの復水Ｋの部分流が導入される。補助復水器５内における駆動蒸気ＤＴとの熱交換中に温まった冷却水Ｋ′は、補助復水器５から復水導管６を通って出て行く。補助復水器５を通して導かれる復水部分流あるいは冷却水Ｋ′の単位時間当たりの量を調整するために、調整弁あるいは制御弁７が利用される。起動運転中、冷却水Ｋ′の量は定格復水量の約５０％〜７０％に調整される。
【００２０】
重複して構成された運転ジェットポンプ１７ａ、１７ｂ及び２０ａ、２０ｂは、起動ジェットポンプ１９と同様にジェットポンプ原理で作動するものであり、それらの運転ジェットポンプのうち例えばジェットポンプ１７ａ、２０ａが蒸気タービン設備の定格運転中に作動し、一方残りの両ジェットポンプは待機状態にある。起動ジェットポンプ１９は蒸気タービン設備の始動時に主復水器１をガス抽出するために使われ、運転ジェットポンプ１７ａ、２０ａ又は１７ｂ、２０ｂは、蒸気タービン設備の通常運転中に、主復水器１内に生ずる空気Ｌをそこから吸い出す。
【図面の簡単な説明】
【図１】
本発明に基づくタービン復水器のガス抽出装置の配管系統図である。
【符号の説明】
１ タービン復水器
４ 復水ポンプ
５ 補助復水器
７ 調整弁
１４ 空気導管
１７ａ、１７ｂ 運転ジェットポンプ
１９ 起動ジェットポンプ
２０ａ、２０ｂ 運転ジェットポンプ
２４ 駆動蒸気導管
ＤＴ 駆動蒸気
Ｌ 空気
Ｋ 復水[0001]
The present invention particularly relates to a method for extracting gas from a turbine condenser at startup. The invention also relates to an apparatus for performing the method.
[0002]
During operation of a steam turbine installation, steam that is typically generated in a boiler and expanded while working in the steam turbine is condensed in a condenser downstream of the steam turbine. The condensate generated in the turbine condenser is reintroduced into the water-steam circuit of the steam turbine. During the operation of the turbine installation, so-called operating jet pumps are often used to extract the air present in the turbine condenser or the main condenser, this operating jet pump being connected to the driving steam conduit and being connected to the main condenser. It is connected to the auxiliary condenser connected downstream. On the suction side of an operating jet pump operating on the jet pump principle, an air line connected to the main condenser is connected.
[0003]
When starting or restarting the steam turbine, it is necessary to first extract gas from the turbine condenser or main condenser to increase the degree of vacuum. In that case, the turbine condenser and thus the steam turbine installation are evacuated from 1.0 bar to about 0.3 bar, for example, within 30 minutes by a so-called start-up steam ejector supplied with drive steam according to the jet pump principle. The vapor-air mixture that is discharged from the discharge side of the starting jet pump is carried out to the atmosphere via piping. The piping must be designed for the set mixing temperature of the resulting steam-air mixture, and must be equipped with a silencer based on the environmental conditions to be protected.
[0004]
The main drawback in that case is that the drive steam normally withdrawn from the water-steam circuit of the steam turbine is lost and a corresponding amount of water must be replenished to the water supply circuit of the turbine condenser. This water supply loss increases with an increase in the number of start-up processes, which leads to extra costs for the necessary water supply preparation.
[0005]
It is an object of the present invention to provide a method for gas extraction of a turbine condenser, in particular during start-up operation, in which the disadvantages mentioned above are avoided in a particularly simple manner. It is a further object of the present invention to provide a device which is particularly suitable for performing this method.
[0006]
The object of the above-mentioned method is solved according to the invention by the features of claim 1. To that end, the driving steam guided through the starting jet pump is introduced into the auxiliary condenser together with the air sucked from the turbine condenser.
[0007]
The drive steam condensed in the auxiliary condenser is thereby reintroduced as condensate into the water supply circuit of the turbine condenser and thus into the steam turbine installation. The air contained in the driving steam is expediently discharged from the auxiliary condenser.
[0008]
It is expedient to ensure that at least half of the condensate or water supply according to the rated operation is used for cooling in the auxiliary condenser in order to be able to start up for several hours. . This only requires a corresponding design of the control valve which normally regulates the condensate flow led from the main condenser through the auxiliary condenser.
[0009]
Furthermore, in order to keep the heating of the condensate stream led through the auxiliary condenser within the required limits, the condensate stream led through the auxiliary condenser by the condensate pump is mostly 75% of the main condenser Guided through the condenser tube. Thereby, the cooling water cooling of the main condenser is used for re-cooling the condensate partial stream guided through the auxiliary condenser. Thus, a relatively small portion of the condensate stream, i.e., about 25% of the condensate conveyed per unit time, is used to cool the wastewater from the steam turbine which is also required for start-up operation.
[0010]
The above-mentioned object of the device is solved according to the invention by the features of claim 5. Advantageous configurations are set out in the dependent claims.
[0011]
The advantages provided by the present invention are, in particular, the fact that the drive steam taken from the water-steam circuit of the steam turbine and used for the gas extraction of the turbine condenser is introduced into the auxiliary condenser of the steam turbine installation. Is to be supplied to the circuit again. This avoids the undesirable replenishment of the circuit with water. Furthermore, the conventional silencers in the steam injection and air pump system for exhausting the turbine and the condenser are eliminated.
[0012]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 schematically shows a piping system of a gas extraction device of a turbine condenser having an auxiliary condenser connected downstream and a steam injection / air pump system.
[0013]
A main condenser or a turbine condenser 1 of a steam turbine facility (not shown) is connected at an outlet side to a condensing pipe 3 through a condensing condenser 2, and the condensing pipe 3 is connected to a condensing pump 4. It is connected to the inlet side of the auxiliary condenser 5 through the. The outlet side of the auxiliary condenser 5 is connected to the main condenser 1 via a condenser conduit 6. In this condensate conduit 6, there is a circulation control valve 7 for adjusting the low-temperature condensate amount required for the start-up operation. Also connected to the condensate conduit 6 is, for example, a condensate recirculation conduit 8 leading to the boiler heating surface, and this condensate recirculation conduit 8 is provided with a regulating valve 9 which is closed at startup.
[0014]
The condensed water K collected in the auxiliary condenser 5 is guided to the condensate collector 2 of the main condenser 1 via the condensate conduit 10. For this purpose, the condenser line 10 is connected to the first pressure stage 5a to the second pressure stage 5b of the auxiliary condenser 5 via two branch pipes 10a, 10b, in which stop valves 11a, 11b are present, respectively. ing. A branch pipe 10c of the condensate conduit 10 used for returning the condensate communicates with the main condenser 1, and a steam discharge pipe 12 from a steam turbine (not shown) is opened in the main condenser 1. ing.
[0015]
A common steam / air mixing pipe 14 is connected to the three partial conduits 14a, 14b, 14c of the main condenser 1. This steam / air mixing line 14 leads to a jet pump system 15 for extracting or exhausting gas from the main condenser 1 and thus from the turbine installation (not shown). For this purpose, the pipe 14 leads to the operating jet pumps 17a, 17b of the first pressure stage 5a of the auxiliary condenser 5 via stop valves 16a, 16b, respectively. The pipe 14 connected to the main condenser 1 communicates with a starting jet pump 19 via a partial conduit 14c where a stop valve 18 is present. This starting jet pump 19 belongs to the second pressure stage 5 b of the auxiliary condenser 5.
[0016]
Separate operating jet pumps 20a, 20b belong to the first pressure stage 5a and the second pressure stage 5b of the auxiliary condenser 5, respectively. These operating jet pumps 17a, 20a, 17b, 20b are configured redundantly, that is, redundantly.
[0017]
The operating jet pumps 17a, 17b and 20a, 20b are connected to a common driving steam line 24 via branch lines 21a, 21b and 22a, 22b, respectively, in which a stop valve 23 is present. Similarly, the start-up jet pump 19 is connected to the driving steam line 24 via a branch line 25 in which a stop valve 26 is present. A further stop valve 27 is present in the driving steam conduit 24, through which the driving steam DT introduced is withdrawn in a manner not shown from the water-steam circuit of the steam turbine.
[0018]
During the startup operation of the steam turbine equipment, first, the gas is extracted from the turbine condenser 1. For this purpose, the stop valve 27 and the stop valve 26 are opened, and the driving steam DT is led through the branch conduit 25 and the starting jet pump 19. The amount of the driving steam DT per unit time guided through the driving steam conduit 24 and the branch conduit 25 during the start-up operation is determined by the starting jet pump 19. The driving steam DT, which is led through a starting jet pump 19 operating on the jet pump principle, draws air L drawn out of the main condenser 1 via the air line 14 due to the negative pressure created in the main condenser 1. together, it is introduced into the auxiliary condenser 5 as a vapor-air mixture D L. For this purpose, the starting jet pump 19 is connected on the discharge side via a connecting line 28, preferably to the second pressure stage 5 b of the auxiliary condenser 5. The driving steam DT is condensed in the auxiliary condenser 5, while the air L carried together with the driving steam DT is discharged from the auxiliary condenser 5 to the atmosphere via the exhaust conduit 29. The driving steam DT condensed in the auxiliary condenser 5 is introduced as condensate via the condensate conduit 10 into the condensing condenser 2 of the main condenser 1 and is therefore introduced into the circuit.
[0019]
In order to condense the drive steam DT in the auxiliary condenser 5, a partial flow of the condensate K from the main condenser 1 conveyed by the condensate pump 4 is introduced into the auxiliary condenser 5 as cooling water. You. The cooling water K ′ warmed during the heat exchange with the driving steam DT in the auxiliary condenser 5 exits the auxiliary condenser 5 through the condenser conduit 6. A regulating valve or control valve 7 is used to regulate the amount of condensate partial flow or cooling water K 'guided per unit time through the auxiliary condenser 5. During the start-up operation, the amount of the cooling water K 'is adjusted to approximately 50% to 70% of the rated condensate amount.
[0020]
The operating jet pumps 17a, 17b and 20a, 20b configured in an overlapping manner operate on the jet pump principle similarly to the starting jet pump 19, and among these operating jet pumps, for example, the jet pumps 17a, 20a It operates during the rated operation of the turbine installation, while the remaining two jet pumps are on standby. The starting jet pump 19 is used to extract gas from the main condenser 1 at the start of the steam turbine equipment, and the operating jet pump 17a, 20a or 17b, 20b is used during normal operation of the steam turbine equipment. The air L generated in 1 is sucked out therefrom.
[Brief description of the drawings]
FIG.
It is a piping system diagram of the gas extraction device of the turbine condenser based on this invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Turbine condenser 4 Condenser pump 5 Auxiliary condenser 7 Adjusting valve 14 Air conduit 17a, 17b Operating jet pump 19 Starting jet pump 20a, 20b Operating jet pump 24 Drive steam conduit DT Drive steam L Air K Condensate
Claims (8)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00102718 | 2000-02-09 | ||
| PCT/EP2000/013039 WO2001059265A1 (en) | 2000-02-09 | 2000-12-20 | Method and device for evacuating a turbine condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004502893A true JP2004502893A (en) | 2004-01-29 |
| JP4579479B2 JP4579479B2 (en) | 2010-11-10 |
Family
ID=8167815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001558581A Expired - Fee Related JP4579479B2 (en) | 2000-02-09 | 2000-12-20 | Gas extraction method and apparatus for turbine condenser |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US6755023B2 (en) |
| EP (1) | EP1254302B1 (en) |
| JP (1) | JP4579479B2 (en) |
| CN (1) | CN1325767C (en) |
| DE (1) | DE50010850D1 (en) |
| WO (1) | WO2001059265A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060254280A1 (en) * | 2005-05-12 | 2006-11-16 | Siemens Westinghouse Power Corporation | Combined cycle power plant using compressor air extraction |
| US8112997B2 (en) * | 2008-04-28 | 2012-02-14 | Siemens Energy, Inc. | Condensate polisher circuit |
| US8069667B2 (en) * | 2009-02-06 | 2011-12-06 | Siemens Energy, Inc. | Deaerator apparatus in a superatmospheric condenser system |
| CN101666250B (en) * | 2009-09-25 | 2012-04-11 | 天津大学 | System for improving low-temperature heat source power generation capacity by using injection pump |
| DE102011114776B4 (en) * | 2011-10-01 | 2014-10-23 | Walter Aumann | Method for operating a steam power plant |
| EP2589764A1 (en) * | 2011-11-04 | 2013-05-08 | Siemens Aktiengesellschaft | Power plant assembly with integrated steam turbine with hogging ejector and method for starting-up a power-plant assembly with steam turbine |
| EP2642089B1 (en) | 2012-03-19 | 2016-08-24 | General Electric Technology GmbH | Method for operating a power plant |
| DE102012023898A1 (en) * | 2012-12-07 | 2014-06-12 | Man Diesel & Turbo Se | Method for operating plant for production of mechanical and electrical energy, has turbine in which steam is supplied and capacitor with closed vacuum breaker valve is evacuated |
| CN105247411A (en) * | 2013-06-04 | 2016-01-13 | 夏普株式会社 | Display device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109722B (en) * | 1959-03-21 | 1961-06-29 | Siemens Ag | Extraction device for turbine condensers |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2927428A (en) * | 1952-01-26 | 1960-03-08 | Sala Antillo | Geothermic central plant for the production of energy, with uncondensable gases compressor-extractors directly operated by the engines producing the energy |
| JPS5968502A (en) * | 1982-10-13 | 1984-04-18 | Hitachi Ltd | Method and device for deaerating condensate in electric power plant |
| GB8325813D0 (en) * | 1983-09-27 | 1983-10-26 | Hick Hargreaves & Co Ltd | Condenser vacuum system |
| DE8708383U1 (en) * | 1986-08-20 | 1988-10-20 | Körting Hannover AG, 3000 Hannover | Steam turbine plant |
-
2000
- 2000-12-20 CN CNB008189072A patent/CN1325767C/en not_active Expired - Fee Related
- 2000-12-20 JP JP2001558581A patent/JP4579479B2/en not_active Expired - Fee Related
- 2000-12-20 US US10/203,385 patent/US6755023B2/en not_active Expired - Lifetime
- 2000-12-20 EP EP00985216A patent/EP1254302B1/en not_active Expired - Lifetime
- 2000-12-20 WO PCT/EP2000/013039 patent/WO2001059265A1/en active IP Right Grant
- 2000-12-20 DE DE50010850T patent/DE50010850D1/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1109722B (en) * | 1959-03-21 | 1961-06-29 | Siemens Ag | Extraction device for turbine condensers |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1254302A1 (en) | 2002-11-06 |
| CN1325767C (en) | 2007-07-11 |
| CN1434895A (en) | 2003-08-06 |
| EP1254302B1 (en) | 2005-07-27 |
| US6755023B2 (en) | 2004-06-29 |
| JP4579479B2 (en) | 2010-11-10 |
| WO2001059265A1 (en) | 2001-08-16 |
| US20030000215A1 (en) | 2003-01-02 |
| DE50010850D1 (en) | 2005-09-01 |
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